<!--
 * @Description:It is troublesome to implement radio button group in the form. So it is extracted independently as a separate component
-->
<template>
    <RadioGroup v-bind="attrs" v-model:value="state" button-style="solid" @change="handleChange">
        <template v-for="item in getOptions" :key="`${item.value}`">
            <RadioButton
                v-if="props.isBtn"
                :value="item.value"
                :disabled="item.disabled"
            >{{ item.label }}</RadioButton>
            <Radio v-else :value="item.value" :disabled="item.disabled">{{ item.label }}</Radio>
        </template>
    </RadioGroup>
</template>
<script lang="ts">
import { defineComponent, PropType, ref, watchEffect, computed, unref, watch } from 'vue';
import { Radio } from 'ant-design-vue';
import { isFunction } from '/@/utils/is';
import { useRuleFormItem } from '/@/hooks/component/useFormItem';
import { useAttrs } from '/@/hooks/core/useAttrs';
import { propTypes } from '/@/utils/propTypes';
import { get, omit } from 'lodash-es';
import { useI18n } from '/@/hooks/web/useI18n';
type OptionsItem = { label: string; value: string | number | boolean; disabled?: boolean };

export default defineComponent({
    name: 'ApiRadioGroup',
    components: {
        RadioGroup: Radio.Group,
        RadioButton: Radio.Button,
        Radio,
    },
    props: {
        api: {
            type: Function as PropType<(arg?: Recordable | string) => Promise<OptionsItem[]>>,
            default: null,
        },
        params: {
            type: [Object, String] as PropType<Recordable | string>,
            default: () => ({}),
        },
        value: {
            type: [String, Number, Boolean] as PropType<string | number | boolean>,
        },
        isBtn: {
            type: [Boolean] as PropType<boolean>,
            default: false,
        },
        numberToString: propTypes.bool,
        resultField: propTypes.string.def(''),
        labelField: propTypes.string.def('label'),
        valueField: propTypes.string.def('value'),
        immediate: propTypes.bool.def(true),
    },
    emits: ['options-change', 'change'],
    setup(props, { emit }) {
        const options = ref<OptionsItem[]>([]);
        const loading = ref(false);
        const isFirstLoad = ref(true);
        const emitData = ref<any[]>([]);
        const attrs = useAttrs();
        const { t } = useI18n();
        // Embedded in the form, just use the hook binding to perform form verification
        const [state] = useRuleFormItem(props);

        // Processing options value
        const getOptions = computed(() => {
            const { labelField, valueField, numberToString } = props;

            return unref(options).reduce((prev, next: Recordable) => {
                if (next) {
                    const value = next[valueField];
                    prev.push({
                        label: next[labelField],
                        value: numberToString ? `${value}` : value,
                        ...omit(next, [labelField, valueField]),
                    });
                }
                return prev;
            }, [] as OptionsItem[]);
        });

        watchEffect(() => {
            props.immediate && fetch();
        });

        watch(
            () => props.params,
            () => {
                !unref(isFirstLoad) && fetch();
            },
            { deep: true },
        );

        async function fetch() {
            const api = props.api;
            if (!api || !isFunction(api)) return;
            options.value = [];
            try {
                loading.value = true;
                const res = await api(props.params);
                if (Array.isArray(res)) {
                    options.value = res;
                    emitChange();
                    return;
                }
                if (props.resultField) {
                    options.value = get(res, props.resultField) || [];
                }
                emitChange();
            } catch (error) {
                console.warn(error);
            } finally {
                loading.value = false;
            }
        }

        function emitChange() {
            emit('options-change', unref(getOptions));
        }

        function handleChange(_, ...args) {
            emitData.value = args;
        }

        return { state, getOptions, attrs, loading, t, handleChange, props };
    },
});
</script>
